434404321 has 16 divisors (see below), whose sum is σ = 475179264. Its totient is φ = 394717824.

The previous prime is 434404319. The next prime is 434404337. The reversal of 434404321 is 123404434.

It is a cyclic number.

It is not a de Polignac number, because 434404321 - 2¹ = 434404319 is a prime.

It is a super-2 number, since 2×434404321² = 377414228206942082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434404301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395445 + ... + 396541.

It is an arithmetic number, because the mean of its divisors is an integer number (29698704).

Almost surely, 2^434404321 is an apocalyptic number.

It is an amenable number.

434404321 is a deficient number, since it is larger than the sum of its proper divisors (40774943).

434404321 is a wasteful number, since it uses less digits than its factorization.

434404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 434404321 is about 20842.3684114834. The cubic root of 434404321 is about 757.3524688814.

Adding to 434404321 its reverse (123404434), we get a palindrome (557808755).

The spelling of 434404321 in words is "four hundred thirty-four million, four hundred four thousand, three hundred twenty-one".